Index: visualc.hpp
===================================================================
--- visualc.hpp	(revision 62724)
+++ visualc.hpp	(working copy)
@@ -94,6 +94,7 @@
 
 #if _MSC_VER <= 1600  // 1600 == VC++ 10.0
 #  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#  define BOOST_NO_STDC_NAMESPACE
 #endif
 
 #if _MSC_VER == 1500  // 1500 == VC++ 9.0